Empididae. J49 



hairs on the dorsal side. The hairs and bristles black or brownish. 

 Wings slightly light brownish tinged. Veins lighter or darker brown; 

 the upper branch of the cubital vein nearly rectangular at its origin, 

 and not much diverging. Stigma brown. Halteres blackish. 



Female, Quite similar to the male; the bristles on thorax not 

 shorter. Front metatarsi simple, about half as long as tibiæ, and as 

 long as the three following joints; the whole tarsus a little longer 

 than tibia; hind tibiæ simple. 



Length 3^ — ^3,5 mm. 



Immature and old museum specimens have often lighter legs, 

 and also abdomen may be somewhat brownish, especially at the base. 



H. corrdcula seems to be rare in Denmark as it has been taken 

 only one time, ^^/o 1844 in Lersøen (Stæger); it was present in sorae 

 numbers. 



Geographical distribution: — Europe down into Italy; it occurs 

 in England but is not known north of Denmark. (See howewer 

 geographical distribution under H. clypeata). 



2. H. coracula n. sp. 

 Male. Vertex and frons velvet black, the latter with a little 

 brownish triangle above the antennæ; epistoma blackish; palpi dark 

 with black hairs. Occiput black or greyish black, with black hairs. 

 Antennæ black. Thorax black, shining. The dorsocentral and acro- 

 stichal bristles of some length, black; the former uniser'al, long be- 

 hind, the latter biserial. Further a humeral bristle, a posthumeral, 

 three notopleural, a supraalar and a postalar bristle, all black. Scu- 

 tellum has four black marginal bristles. Pleura greyish pruinose. 

 Abdomen black, somewhat shining, with black or brownish black 

 hairs and somewhat longer, bristly hairs at the hind margin of the 

 segments. Venter similarly coloured, short-haired. The exterior geni- 

 talia rather large, strongly compressed, the ventral piece (ventral la- 

 mella) longer than in cornicula. Legs black or brownish black; coxæ 

 slightly greyish pruinose. Femora with fine hairs above and below, 

 they are somewhat long below the hind femora; the middle femora 

 with a few bristly hairs on the anterior side; front tibiæ with fine 

 hairs and some slightly longer bristles on the dorsal side, longest at 

 the apex; hind tibiæ with two rows of somewhat long bristles on 

 the dorsal and anterior side. Front metatarsi of a shape as in corni- 

 cula, a little thicker than the end of tibiæ, slightly shorter than the 

 tibiæ, and about as long as the other four joints; they are short- 

 haired, with some longer hairs above towards the apex. The hairs 

 and bristles brown. Wings strongly blackish brown tinged. Veins 



